Synthesis and Characterization of Magnetic Molecularly Imprinted Polymers for the Adsorption of Chlorpyrifos from Aqueous Media

IF 1 4区化学 Q4 POLYMER SCIENCE Polymer Science, Series B Pub Date : 2024-07-02 DOI:10.1134/s1560090424600360

Flora Amerley Amarh, Ahmed Kangmennaa, Eric Selorm Agorku, Ray Bright Voegborlo

{"title":"Synthesis and Characterization of Magnetic Molecularly Imprinted Polymers for the Adsorption of Chlorpyrifos from Aqueous Media","authors":"Flora Amerley Amarh, Ahmed Kangmennaa, Eric Selorm Agorku, Ray Bright Voegborlo","doi":"10.1134/s1560090424600360","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Molecular imprinting technology is a specialized technique used to create selective recognition sites within synthetic polymers. It has been employed in the removal of environmental contaminants like pesticides. In this research, a magnetic molecularly imprinted polymer (MMIP) centered on chlorpyrifos as the template molecule was successfully synthesized. Ethyleneglycol dimethacrylate (EGDMA) was the crosslinker, functional monomer used was methacrylic acid (MAA) and initiator was AIBN (2,2′-azobis-isobutyronitrile). The MMIP was successfully characterized using Fourier-transform infra-red (FTIR), scanning electron microscope (SEM), energy dispersive X-ray (EDX), and X-ray diffraction (XRD). The MMIP recorded a high adsorption capacity and selectivity for chlorpyrifos. The MMIP was then used as a dispersive solid phase extraction (D-SPE) adsorbent for isolating and extracting chlorpyrifos from water samples. A gas chromatograph coupled with an electron capture detector (GC-ECD) was used to quantify the extracts. When compared to C-18 solid phase extraction (SPE), the MMIP recorded spiked chlorpyrifos recoveries between 82 and 104% while that for C-18 SPE ranged between 64 and 81%. The limits of quantification (LOQ) and detection (LOD) were 4.91 and 1.62 mg/L respectively.</p>","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Science, Series B","FirstCategoryId":"1","ListUrlMain":"https://doi.org/10.1134/s1560090424600360","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

Molecular imprinting technology is a specialized technique used to create selective recognition sites within synthetic polymers. It has been employed in the removal of environmental contaminants like pesticides. In this research, a magnetic molecularly imprinted polymer (MMIP) centered on chlorpyrifos as the template molecule was successfully synthesized. Ethyleneglycol dimethacrylate (EGDMA) was the crosslinker, functional monomer used was methacrylic acid (MAA) and initiator was AIBN (2,2′-azobis-isobutyronitrile). The MMIP was successfully characterized using Fourier-transform infra-red (FTIR), scanning electron microscope (SEM), energy dispersive X-ray (EDX), and X-ray diffraction (XRD). The MMIP recorded a high adsorption capacity and selectivity for chlorpyrifos. The MMIP was then used as a dispersive solid phase extraction (D-SPE) adsorbent for isolating and extracting chlorpyrifos from water samples. A gas chromatograph coupled with an electron capture detector (GC-ECD) was used to quantify the extracts. When compared to C-18 solid phase extraction (SPE), the MMIP recorded spiked chlorpyrifos recoveries between 82 and 104% while that for C-18 SPE ranged between 64 and 81%. The limits of quantification (LOQ) and detection (LOD) were 4.91 and 1.62 mg/L respectively.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

用于从水介质中吸附毒死蜱的磁性分子印迹聚合物的合成与表征

摘要分子印迹技术是一种专门技术，用于在合成聚合物中创建选择性识别位点。它已被用于去除农药等环境污染物。本研究成功合成了一种以毒死蜱为模板分子的磁性分子印迹聚合物（MMIP）。交联剂为乙二醇二甲基丙烯酸酯（EGDMA），功能单体为甲基丙烯酸（MAA），引发剂为 AIBN（2,2′-偶氮二异丁腈）。利用傅立叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、能量色散 X 射线（EDX）和 X 射线衍射（XRD）对 MMIP 进行了表征。MMIP 对毒死蜱具有很高的吸附能力和选择性。然后将 MMIP 用作分散固相萃取（D-SPE）吸附剂，从水样中分离和萃取毒死蜱。使用气相色谱仪结合电子捕获检测器（GC-ECD）对提取物进行定量。与 C-18 固相萃取（SPE）相比，MMIP 的毒死蜱加标回收率在 82% 至 104% 之间，而 C-18 固相萃取的回收率在 64% 至 81% 之间。定量限（LOQ）和检测限（LOD）分别为 4.91 毫克/升和 1.62 毫克/升。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Polymer Science, Series B 化学-高分子科学

CiteScore

1.80

自引率

8.30%

发文量

审稿时长

>0 weeks

期刊介绍： Polymer Science, Series B is a journal published in collaboration with the Russian Academy of Sciences. Series B experimental and theoretical papers and reviews dealing with the synthesis, kinetics, catalysis, and chemical transformations of macromolecules, supramolecular structures, and polymer matrix-based composites (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed